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ADS1240 Status: ACTIVE

24-Bit Analog-to-Digital Converter

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See Also

  • ADS1242 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Has a different package than ADS1240
  • ADS1241 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  Has 8 serial and 4 Diff channels
  • ADS1232 - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

View all related products

Datasheet

Download - PDF Icon
  • 24-Bit Analog-to-Digital Converter (Rev. E) (ads1240.pdf, 621 KB)
    02 Aug 2006 Download

 ADS1216 ADS1217 ADS1218 ADS1240ADS1241 ADS1242 ADS1243 ADS1248 ADS1256 
Resolution(Bits)24  24  24  24  24  24  24  24  24  
Sample Rate (max)780SPS  780SPS  780SPS  15SPS  15SPS  15SPS  15SPS  2KSPS  30kSPS  
ArchitectureDelta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma  Delta-Sigma   Delta-Sigma  
Power Consumption(Typ)(mW)0.6  0.8  0.8  0.6  0.6  0.6  0.6  2.56  36  
DNL(Max)(+/-LSB)1  1  1  1  1  1  1   2  
INL(Max)(+/-LSB)0.0015%  0.0015%  0.0015%  0.0015%  0.0015%  0.0015%  0.0015%   0.0003%  
No Missing Codes(Bits)24  24  24  24  24  24  24  24  24  
ENOB(Bits)        23  
No. of Supplies2  2  2  2  2  1  1  3  2  
Analog Voltage AV/DD(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.5  4.75  
Analog Voltage AV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.8  5.25  
Logic Voltage DV/DD(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  2.7  2.5  1.8  
Logic Voltage DV/DD(Max)(V)5.25  5.25  5.25  5.25  5.25  5.25  5.25  5.8  3.6  
Input Configuration RangeVref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  Vref/PGA (1-128)  +/- Vref / PGA  2Vref/PGA(1-64  
Reference ModeInt  Int  Int  Ext  Ext  Ext  Ext  Int/Ext  Ext  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Pin/Package48TQFP  48TQFP  48TQFP  24SSOP  28SSOP  16TSSOP  20TSSOP  28TSSOP  28SSOP  
# Input Channels8  8  8  4  8  4  8  7  8  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ADS1241: 24-Bit Analog-to-Digital Converter
  • ADS1242: 24-Bit ADC, 4 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption
  • ADS1232: 24-Bit, Ultra Low-Noise Analog-to-Digital Converter
  • ISO122: Precision Lowest Cost Isolation Amplifier
  • SN65HVD251: Industrial CAN Transceiver
  • INA128: Precision, Low Power Instrumentation Amplifiers

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Product Information

Features

  • 24 BITS NO MISSING CODES
  • SIMULTANEOUS 50Hz AND 60Hz REJECTION (-90dB MINIMUM)
  • 0.0015% INL
  • 21 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
  • PGA GAINS FROM 1 TO 128
  • SINGLE-CYCLE SETTLING
  • PROGRAMMABLE DATA OUTPUT RATES
  • EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 5V
  • ON-CHIP CALIBRATION
  • SPI™ COMPATIBLE
  • 2.7V TO 5.25V SUPPLY RANGE
  • 600µW POWER CONSUMPTION
  • UP TO EIGHT INPUT CHANNELS
  • UP TO EIGHT DATA I/O
  • APPLICATIONS
    • INDUSTRIAL PROCESS CONTROL
    • WEIGHT SCALES
    • LIQUID/GAS CHROMATOGRAPHY
    • BLOOD ANALYSIS
    • SMART TRANSMITTERS
    • PORTABLE INSTRUMENTATION

All trademarks are the property of their respective owners.

Description

The ADS1240 and ADS1241 are precision, wide dynamic range, delta-sigma, analog-to-digital (A/D) converters with 24-bit resolution operating from 2.7V to 5.25V supplies. These delta-sigma, A/D converters provide up to 24 bits of no missing code performance and effective resolution of 21 bits.

The input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit digital-to-analog converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

The Programmable Gain Amplifier (PGA) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable FIR filter that provides a simultaneous 50Hz and 60Hz notch. The reference input is differential and can be used for ratiometric conversion.

The serial interface is SPI compatible. Up to eight bits of data I/O are also provided that can be used for input or output. The ADS1240 and ADS1241 are designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ADS1240EACTIVE4.75 | 100uSSOP (DB) | 24 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
ADS1240E/1KACTIVE4.75 | 100uSSOP (DB) | 24 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1240E/1KG4ACTIVE4.75 | 100uSSOP (DB) | 24 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ADS1240EG4ACTIVE4.75 | 100uSSOP (DB) | 24 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

  TI Inventory Status Reported Distributor Inventory
ADS1240EAs of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2743 | 2 Feb 12 Weeks AmericasAvnet 765
 3061 | 3 Feb DigiKey >1k
 >10k | 4 Feb Mouser Electronics 452
  Newark 135
  Rochester Electronics 61
  AsiaWPI 54
  EuropeAbacus Polar 420
ADS1240E/1KAs of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 28 Jan 12 Weeks AmericasAvnet >1k
ADS1240E/1KG4As of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 28 Jan 12 Weeks AmericasAvnet >1k
ADS1240EG4As of 10:18 AM GMT, 19 Nov 2008As of 10:18 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2743 | 2 Feb 12 Weeks AmericasAvnet 611
 3061 | 3 Feb EuropeEBV Elektronik 60
 >10k | 4 Feb Farnell 749
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
ADS1240E RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS1240E/1K RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS1240E/1KG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
ADS1240EG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

  • 24-Bit Analog-to-Digital Converter (Rev. E) (ads1240.pdf, 621 KB)
    02 Aug 2006 Download

Application Notes

  • A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
    12 Jan 2008 Abstract
  • Measuring Single-Ended 0V-5V Signals with Differential Delta-Sigma ADCs (sbaa133.htm, 8 KB)
    25 Aug 2005 Abstract
  • Overclocking the ADS1240 and ADS1241 (Rev. A) (sbaa084a.htm, 8 KB)
    08 Jul 2004 Abstract
  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • Inputs Currents for High-Resolution ADCs (sbaa090.htm, 8 KB)
    06 Mar 2003 Abstract
  • ADS1240, 1241 App-Note: Accessing the Onboard Temp Diode in the ADS1240/ADS1241 (sbaa083.htm, 8 KB)
    04 Oct 2002 Abstract
  • Implementing a Direct Thermocouple Interface With MSP430x4xx and ADS1240 (Rev. A) (slaa125a.htm, 9 KB)
    04 Oct 2001 Abstract
  • Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
    04 Oct 2000 Abstract
  • Analog-to-Digital Converter Grounding Practices Affect System Performance (sbaa052.htm, 8 KB)
    02 Oct 2000 Abstract
  • Principles of Data Acquisition and Conversion (sbaa051.htm, 8 KB)
    02 Oct 2000 Abstract
  • Interleaving Analog-to-Digital Converters (sbaa049.htm, 8 KB)
    02 Oct 2000 Abstract
  • What Designers Should Know About Data Converter Drift (sbaa046.htm, 8 KB)
    02 Oct 2000 Abstract
  • High Speed Data Conversion (sbaa045.htm, 8 KB)
    02 Oct 2000 Abstract
  • Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (sbaa006.htm, 8 KB)
    27 Sep 2000 Abstract
  • Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (sbaa005.htm, 8 KB)
    27 Sep 2000 Abstract

View Application Notes for Analog to Digital Converters

User Guides

View User Guides for Analog to Digital Converters

More Literature

View More Literature for Analog to Digital Converters

Tools & Software

NamePart # Company Tool / Software Type
Anti-Aliasing Calculation Tool for A to D ConvertersANTIALIASINGCALCTexas InstrumentsCalculation Utilities
Op Amp to ADC Circuit Topology CalculatorADC-INPUT-CALCTexas InstrumentsCalculation Utilities
DCPFREETOOL Software Plug-In to Code Composer StudioDCPFREETOOLTexas InstrumentsUtilities/Plug-Ins
  • Data Converter Plug-in for Code Composer Studio (Rev. D)(slac087d.zip, 5199 KB )
               05 May 2008 zip

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ADS1242 24-Bit ADC, 4 Ch, PGA 1:128, 50/60 Hz Notch, 0.6 mW Power Consumption The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a different package than ADS1240 
ADS1241 24-Bit Analog-to-Digital Converter The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has 8 serial and 4 Diff channels 
ADS1232 24-Bit, Ultra Low-Noise Analog-to-Digital Converter The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  
ADS1234 24-Bit, Ultra Low-Noise Analog-to-Digital Converter The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.  
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